Title:
MANUFACTURE OF PPBENZOQUINONE
Document Type and Number:
Japanese Patent JPS5448726
Kind Code:
A
Abstract:
1. Process for the preparation of para-benzoquinone by oxidising phenol with molecular oxygen or with a gas containing molecular oxygen, in an organic solvent, in the presence of cuprous or cupric ions and of a copper complexing agent, characterised in that it is carried out in the presence of an agent for reducing cupric ions to cuprous ions, selected from the group consisting of the diphenols, the substituted alkylphenols, the aliphatic aldehydes, the aliphatic ketones containing from 3 to 6 carbon atoms, and the aliphatic and cycloaliphatic olefines and diolefines.
Inventors:
MISHIERU KONSUTANTEINI
MISHIERU JIYUFURE
MISHIERU JIYUFURE
Application Number:
JP10768078A
Publication Date:
April 17, 1979
Filing Date:
September 04, 1978
Export Citation:
Assignee:
RHONE POULENC IND
International Classes:
B01J27/00; C07B61/00; C07C45/00; C07C50/04; C07C46/08; C07C67/00; (IPC1-7): B01J27/10; C07C45/16; C07C49/64